Only one in five educators think they’re assessed fairly during the evaluation process. We aim to improve that number.

The Performance Matters Calibration tool facilitates precise, standardized results throughout the observation process. We provide observers with access to time-tested methods for conducting evaluations that help deliver actionable feedback to educators.

  • Reliable

    Calibration brings trust and objectivity to the educator evaluation process.

    Expert-developed solutions

    Created in partnership with the industry leader in inter-rater reliability research, Teaching and Learning Solutions (TLS).

    Inter-rater reliability

    Proven methods to measure accuracy are embedded into observer certification trainings and improve inter-rater reliability.

    Embedded accuracy measures

    Three key measures explain observer objectivity, compare individual scoring to a cohort, and examine how closely aligned cohort is to accuracy measure.

  • Accurate

    Precise measurement of an individual observer’s skills and accuracies in the evaluation process.

    Research-based scoring

    Product syncs with your unique evaluation framework and district-specific rubrics.

    Objective data collection

    Evaluators are given resources to understand how to collect valid, defensible evidence.

    Automated scoring

    Provides educators and administrators with instant access to individual results.

  • Effective

    Resources are designed to arm observers with tools needed to conduct objective evaluations.

    Relevant, master-scored videos

    Observers garner best practices by viewing realistic teaching scenarios in relevant, high-quality video content.

    Scripting tool

    Our easy-to-use scripting tool helps observers demonstrate their ability to collect evidence and select reasoned ratings.

    Benefits for observers

    Individual proficiency-level scores drive professional growth decisions for observers.





Administrators instill confidence in the observation and evaluation process by ensuring district-wide inter-rater reliability.



Educators trust the observation process and know they are being evaluated fairly and consistently.

What Educators Want with Calibration


Believe that lack of trust is an obstacle in the creation of a personalized professional learning climate.


Feel that their work is assessed unfairly in the educator evaluation process.


Of all educators in a study of 14 large school districts were evaluated as “satisfactory.”